Externally-heated coke-oven.



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fizmfizior Wincvdadl ygwm No. 649,483. Patented May l5, I900.

0. RUPPERT.

EXTERNALLY HEATED COKE OVEN.

(Application filed Dec. 8, 1897-) 3 SheetsSheet 2.

(No Model.)

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0 RUPPEBT EXTERNALLY HEATED COKE OVEN.

(App! canon filed Dec 8 1897 3 Sheets-Sheet 3.

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Unrrnn STATES PATENT OFFICE.

OTTOMAR RUPPERT, OF ESSEN, GERMANY, ASSIGNOR TO THE UNITED COKE AND GAS COMPANY, OF CHARLESTON, VEST VIRGINIA, AND PHILADEL- PHIA, PENNSYLVANIA.

EXTERNALLY-HEATED COKE-OVEN.

SPECIFICATION forming part of Letters Patent No. 649,483, dated May 15, 1900.

Application filed December 8,1897. Serial No. 661,141. (No model.)

To all whom it may concern:

Be it known that I, OTTOMAR RUPPERT, a subject of the King of Prussia, Emperor of Germany, and a resident of Essen-on-the- Ruhr, Germany, have invented a certain new and useful Improvement in Externally-Heated Coke-Ovens, (for which I have obtained German Letters Patent No. 78,927, dated Deceniber 19, 1894,) of which the following is a to true and exact description, reference being had to the accompanying drawings, which form a part thereof.

My invention relates to the CODStruction and heating of sets or banks of horizo t I 5 ternally heated coke-ovens adapted f th saving of the by-products of the coking o eration. Such ovens are heated by the combustion of gas in fines formed in or b t n the walls of adjacent ovens, and prio to my invention the gas and air to Support ombustion were admitted either at a single point or at several points in the wall-fines, In the first case the oven-walls were intensely heated at the point of introduction of the gas,

2 5 while in the second case while th walls were somewhat more evenly heated the heat was stillnot even and not at all controllable, owing to the fact that the gas and air being admitfed into a single chamber the combustion was 0 irregular and in all cases more intense in some than in other parts of the chamber.

The object of my invention is to insure a more even and regulable combustion of gas in the chambers or lines situated between the 3 5 ovens, so that a practically-even heat can be secured throughout the ovens, and I secure this result by dividing each interposed heating-flue into two or more separate combus tionchambers each having separate gas and air inlets, and thereby secure a thorough and independent ignition of each separate gassupply at the place where I desire its ignition, and of course by this arrangement I can regulate the gas and air supplied to each chamber independently and so as to produce the best results in each chamber and its connected ilues. I preferably utilize fines for the products of combustion passing from the chambers aforesaid which are also situated in and form a part of the interposed heating- 5o flue between the ovens and which may each,

if more than one is used, conveniently take off gases from two or more of the separate combustion-chambers, andto effect a proper distribution of heat as well as to brace the oven-walls I prefer to form or provide some or all of the combustion-chambers with divisional extensions or flues, the divisions being separated by vertical walls, and this arrangement of vertical division-walls is advanta- 6o geously employed also in the flues common to two or more combustion-chambers.

Reference being now had to the drawings, which illustrate a portion of a coke-oven bank constructed in accordance with my invention, Figure 1 is a longitudinal section taken through the center of a coke-oven; Fig. 2, a longitudinal section taken through the center of one of the interposed heating-fines; Fig.

3, a vertical section on the irregular line 3 3 of Fig. 2; Fig. 4, a vertical section on the line 4 4 of Fig. 1; Fig. 5, a vertical section on the line 5 5 of Fig. 1; Fig. 6, a horizontal section on the line 6 6 of Fig. 1; Fig. 7, a horizontal section on the line 7 7 of Fig. 2, and Fig. 8 a horizontal section on the line.8 8 of Fig. 2.

A A, the, are the horizontal parallel coke ovens; B B, Figs. 1, 2, and 4, the chargingopenings; 0 0, Figs. 1, 2, and 5, gas take-offs connecting to mains D, Fig. 1.

E E, Figs. 1, 2, and 3, are openings from the ovens into fines F, which, as shown, Figs.

2 and 3, connect through passages U U with the interposed fiues I, as shown, with the portions 0 and S thereof.

G G, Figs. 1, 2, and 3, are valves for closing openings E.

H H, Figs. 1 and 2, are openings to the top of the stack from flues F, through which air can be drawn into the fines I or, if desired, into the ovens.

J J, &c., Figs. 1, 3, 4, 5, and 6, are fines for products of combustion, situated, as shown, beneath the ovens A and connected with the divisions of the heating-flue I, as shown, by 5 passages J These flues J connect by passages K, Fig. 1, with a take-off conduit L. As shown, the fines J run from the partitionwalls J Figs. 1 and 6, to flues K. Flue J, which structurally might be considered as a portion or extension of flue J separated from the main portion by the wall J*, is, in fact, in the construction shown a mere connectin g-fiue between the divisional flues m and n. M and M are walls separating from or forming in the heating-flue I the combustionchamber M which, as shown, is provided with divisional fines m m, &c., formed by vertical partition-walls. As illustrated, said divisional flues connect at bottom with the connecting-flue J and through said connecting-flue J with the vertical divisional flues 'n, which are situated between the wall M and the vertical wall N, which rises in the flue I in line with the wall J Above the top of the horizontal wall M is formed a second combustion-chamber, which, as shown, extends along the top of the flue I in the form of a flue or passage 0, into which the vertical divisional flues a open at the top and into which open also the divisional flues p, situated between the upwardly-extending wall N and the downwardly-extending wall P, the said divisional flues 19 opening at bottom into the flues J. At the other end of the heatingflue I, I form two combustion-chainbers T and T separated from each other, as shown, by the inclined partition-wall T and separated from the next adjacent flues r by the vertical partition-wall R. The combustionchamber T is provided with vertical partition-walls t, separating its upper part into a series of divisional flues which open into the horizontal flue S at the topof the heatingflue I, while the lower combustion-chamber T is also provided with vertical partitionwalls 15, which form divisional flues in its lower part opening at bottom into the connecting-flue T from which extend the divisional flues 1, formed by vertical partitionwalls lying between the wall R and the wall Q, The horizontal flue S, into which both the flues t and the flues r open, connects in turn with the divisional flues q, formed by vertical partitions situated between the walls QandP and opening at bottom into the flue J. Into each combustion-chamber open gas and air supplying devices, the gas, for

instance, being drawn from pipes V, Fig. 1, through connections V to burners V and V one situated in each combustion-chamber. The air may be forced into the combustionchamber with and by the gas or maybe supplied where it is desired to use cool air through independent channels, such as are indicated at w as entering the upper combustion-chamber o formedat the end of flue O and at the end of fl'ue S, and, as shown in connection with the burners V the air is drawn into the combustion-chamber through flues W, formed in the masonry of the stack and which may be conveniently connected, for instance, with the flues W, which, as shown, are formed beneath the flues J and which would thus serve both to cool the bottom of the flues J and to preheat the air introduced into the combustion-chambers.

At V Fig. 2, I have shown a divisional air-flue extending up through the wall M into the flue O, and it will of course be understood that air may be introduced at any points where it is desired that it should combine with the gas to facilitate combustion.

W indicates an intersecting flue connectingflues W with the outer air; but it will be understood such connections can be madein any convenient way.

In operation gas and air are introduced into the combustion-chambers M 0, T, and T and thoroughly ignited in said chambers,

the burning gases and products of combustion passing from the chamber M into the flue J, then upward through flues n into flue O, mingling with the ignited gases from the combustion-chamber above the wall M in the flue O, and the mixed gases from both combustion-chambers passing down through flues 19 into the take-off flue J. The burning gases in the combustion-chambers T and T pass, respectively, upward through the flues t into the horizontal flue S, downward through the flues t, and then upward through the flues 7" into the flue S, the mixed gases passing down through the flues q into the flue J. Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. In combination with a series of horizontal coke-ovens arranged to receive heat through their walls and for the saving of byproducts, two or more separate and relativelyindependent combustion-chambers situated between the walls of adjacent ovens, separate gas and air supplies entering each said chamber and a system of flues for products of combustion, said flue system connecting with but not passing through the combustionchambers.

2. In combination with a series of horizontal coke -ovens arranged to receive heat through their walls and for the saving of byproducts,two or more separate and relativelyindependent combustion-chambers situated between the walls of adjacent ovens, separate gas and air supplies entering each said chamber and a system of flues for products of combustion also situated between the walls of the ovens said flue system connecting with but not passing through the combustion-chambers.

3. In combination with a series of horizontal coke ovens arranged to receive heat through the walls and for the saving of byproducts, two or more separate and relativelyindependent combustion-chambers situated between the walls of adjacent ovens, separate gas and air supplies entering each said chamber, a separate flue leading from each said chamber and also situated between the ovens ovens connected with but not passing through the combustion-chambers.

5. In combination with a series of horizontal coke -ovens arranged to receive heat through their walls and for the saving of by products, two separate and relatively-independent eombustion-chambers situated one above the other between the walls of adjacent ovens, separate air and gas supplies entering each combustion-chamber, an independent flue situated between the ovens and leading from each combustion-chamber and a common flue system also situated between the adjacent ovens connected with the independent flues aforesaid.

6. In combination with a series of horizontal coke -ovens arranged to receive heat through their walls and for the saving of byproducts, two separate and relatively-independent eoinbustion-chambers situated one above the other between the walls of adjacent ovens at each end of the ovens, separate air and gas supplies entering each combustionchamber, an independent,flue situated between the ovens and leading from each combustion-chamber and common fiues also situated between the ovens connecting with the independent lines at each end of the ovens 40 and leading to a gas take-off flue.

OTTOMAR RUPPER'I.

Witnesses:

WILLIAM EsSENWEIN, F. 'l. MAoINMoR'r. 

